{"product_id":"k1-unloader-valve-10-8-gpm-3600-psi-3-8-m-outlet-oem-replacement-part","title":"K1 Unloader Valve 10.8 GPM 3600 PSI 3\/8\" M Outlet – OEM Replacement Part","description":"\u003cp data-start=\"0\" data-end=\"155\"\u003e\u003cstrong data-start=\"0\" data-end=\"16\"\u003ePart Number:\u003c\/strong\u003e 8.712-601.0\u003cbr data-start=\"21\" data-end=\"24\"\u003e\u003cstrong data-start=\"24\" data-end=\"37\"\u003eCategory:\u003c\/strong\u003e Pressure Washer Parts → Unloader Valves → Pressure Washer Regulators\u003cbr data-start=\"106\" data-end=\"109\"\u003e\u003cstrong data-start=\"109\" data-end=\"118\"\u003eType:\u003c\/strong\u003e General Pump ZK1 \/ K1 Unloader Valve\u003c\/p\u003e\n\u003chr data-start=\"157\" data-end=\"160\"\u003e\n\u003cp data-start=\"244\" data-end=\"707\"\u003eThe \u003cstrong data-start=\"248\" data-end=\"306\"\u003eGeneral Pump K1 Unloader Valve (Model ZK1, Part #6703)\u003c\/strong\u003e is a heavy-duty OEM replacement pressure washer unloader designed to provide reliable pressure regulation and pump protection in commercial and industrial cleaning systems. Rated for up to \u003cstrong data-start=\"496\" data-end=\"509\"\u003e3,600 PSI\u003c\/strong\u003e, \u003cstrong data-start=\"511\" data-end=\"523\"\u003e10.8 GPM\u003c\/strong\u003e, and temperatures up to \u003cstrong data-start=\"548\" data-end=\"557\"\u003e165°F\u003c\/strong\u003e, the K1 is engineered to handle demanding pressure washing applications while helping extend the service life of pumps, hoses, and system components.\u003c\/p\u003e\n\u003chr data-start=\"1308\" data-end=\"1311\"\u003e\n\u003ch2 data-section-id=\"939trr\" data-start=\"1313\" data-end=\"1339\"\u003eKey Features \u0026amp; Benefits\u003c\/h2\u003e\n\u003cul data-start=\"1341\" data-end=\"1836\"\u003e\n\u003cli data-section-id=\"1yufexy\" data-start=\"1341\" data-end=\"1394\"\u003eGenuine General Pump OEM replacement unloader valve\u003c\/li\u003e\n\u003cli data-section-id=\"1oxq1oi\" data-start=\"1395\" data-end=\"1425\"\u003eModel ZK1 \/ K1 configuration\u003c\/li\u003e\n\u003cli data-section-id=\"19wyr8z\" data-start=\"1426\" data-end=\"1449\"\u003eRated up to 3,600 PSI\u003c\/li\u003e\n\u003cli data-section-id=\"tngq4k\" data-start=\"1450\" data-end=\"1486\"\u003eSupports flow rates up to 10.8 GPM\u003c\/li\u003e\n\u003cli data-section-id=\"1tjntnq\" data-start=\"1487\" data-end=\"1533\"\u003eAutomatically diverts water into bypass mode\u003c\/li\u003e\n\u003cli data-section-id=\"26wjm6\" data-start=\"1534\" data-end=\"1576\"\u003eHelps protect pumps from pressure spikes\u003c\/li\u003e\n\u003cli data-section-id=\"1xqtgmm\" data-start=\"1577\" data-end=\"1615\"\u003eImproves pressure washer reliability\u003c\/li\u003e\n\u003cli data-section-id=\"17zrwgz\" data-start=\"1616\" data-end=\"1658\"\u003eHeavy-duty commercial-grade construction\u003c\/li\u003e\n\u003cli data-section-id=\"nh2esv\" data-start=\"1659\" data-end=\"1708\"\u003eDesigned for high-flow pressure washing systems\u003c\/li\u003e\n\u003cli data-section-id=\"745a6k\" data-start=\"1709\" data-end=\"1764\"\u003eSuitable for professional and industrial applications\u003c\/li\u003e\n\u003cli data-section-id=\"1pt5a32\" data-start=\"1765\" data-end=\"1797\"\u003eAdjustable pressure regulation\u003c\/li\u003e\n\u003cli data-section-id=\"dvslg6\" data-start=\"1798\" data-end=\"1836\"\u003eHelps extend pump and component life\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1838\" data-end=\"1841\"\u003e\n\u003ch2 data-section-id=\"1cgu054\" data-start=\"1843\" data-end=\"1870\"\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cp data-start=\"1872\" data-end=\"1893\"\u003e\u003cstrong data-start=\"1872\" data-end=\"1888\"\u003ePart Number:\u003c\/strong\u003e 6703\u003c\/p\u003e\n\u003cp data-start=\"1895\" data-end=\"1925\"\u003e\u003cstrong data-start=\"1895\" data-end=\"1912\"\u003eManufacturer:\u003c\/strong\u003e General Pump\u003c\/p\u003e\n\u003cp data-start=\"1927\" data-end=\"1946\"\u003e\u003cstrong data-start=\"1927\" data-end=\"1937\"\u003eModel:\u003c\/strong\u003e ZK1 \/ K1\u003c\/p\u003e\n\u003cp data-start=\"1948\" data-end=\"1996\"\u003e\u003cstrong data-start=\"1948\" data-end=\"1965\"\u003eProduct Type:\u003c\/strong\u003e Pressure Washer Unloader Valve\u003c\/p\u003e\n\u003cp data-start=\"1998\" data-end=\"2029\"\u003e\u003cstrong data-start=\"1998\" data-end=\"2019\"\u003eMaximum Pressure:\u003c\/strong\u003e 3,600 PSI\u003c\/p\u003e\n\u003cp data-start=\"2031\" data-end=\"2062\"\u003e\u003cstrong data-start=\"2031\" data-end=\"2053\"\u003eMaximum Flow Rate:\u003c\/strong\u003e 10.8 GPM\u003c\/p\u003e\n\u003cp data-start=\"2064\" data-end=\"2094\"\u003e\u003cstrong data-start=\"2064\" data-end=\"2088\"\u003eMaximum Temperature:\u003c\/strong\u003e 165°F\u003c\/p\u003e\n\u003cp data-start=\"2096\" data-end=\"2122\"\u003e\u003cstrong data-start=\"2096\" data-end=\"2111\"\u003eInlet Port:\u003c\/strong\u003e 3\/8\" BSP-F\u003c\/p\u003e\n\u003cp data-start=\"2124\" data-end=\"2151\"\u003e\u003cstrong data-start=\"2124\" data-end=\"2140\"\u003eOutlet Port:\u003c\/strong\u003e 1\/2\" BSP-F\u003c\/p\u003e\n\u003cp data-start=\"2153\" data-end=\"2180\"\u003e\u003cstrong data-start=\"2153\" data-end=\"2169\"\u003eBypass Port:\u003c\/strong\u003e 1\/2\" BSP-M\u003c\/p\u003e\n\u003cp data-start=\"2182\" data-end=\"2206\"\u003e\u003cstrong data-start=\"2182\" data-end=\"2202\"\u003eOEM Replacement:\u003c\/strong\u003e Yes\u003c\/p\u003e\n\u003chr data-start=\"2208\" data-end=\"2211\"\u003e\n\u003ch2 data-section-id=\"1kehdxb\" data-start=\"2213\" data-end=\"2243\"\u003eWhat an Unloader Valve Does\u003c\/h2\u003e\n\u003cp data-start=\"2245\" data-end=\"2282\"\u003eThe K1 unloader valve is designed to:\u003c\/p\u003e\n\u003cul data-start=\"2284\" data-end=\"2529\"\u003e\n\u003cli data-section-id=\"1guzp1l\" data-start=\"2284\" data-end=\"2313\"\u003eRegulate operating pressure\u003c\/li\u003e\n\u003cli data-section-id=\"5y0q52\" data-start=\"2314\" data-end=\"2364\"\u003eDivert water flow when the trigger gun is closed\u003c\/li\u003e\n\u003cli data-section-id=\"v79oct\" data-start=\"2365\" data-end=\"2408\"\u003ePrevent pressure spikes within the system\u003c\/li\u003e\n\u003cli data-section-id=\"1am5e27\" data-start=\"2409\" data-end=\"2446\"\u003eProtect pumps from excessive stress\u003c\/li\u003e\n\u003cli data-section-id=\"dlc31g\" data-start=\"2447\" data-end=\"2473\"\u003eImprove equipment safety\u003c\/li\u003e\n\u003cli data-section-id=\"195a3ty\" data-start=\"2474\" data-end=\"2529\"\u003eExtend the service life of pressure washer components\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2531\" data-end=\"2653\"\u003eWhen the spray gun is released, the valve redirects water through the bypass circuit until the trigger is activated again.\u003c\/p\u003e\n\u003chr data-start=\"2655\" data-end=\"2658\"\u003e\n\u003ch2 data-section-id=\"vx2wyp\" data-start=\"2660\" data-end=\"2682\"\u003eCommon Applications\u003c\/h2\u003e\n\u003ch3 data-section-id=\"1m7fp76\" data-start=\"2684\" data-end=\"2715\"\u003eCommercial Pressure Washing\u003c\/h3\u003e\n\u003cp data-start=\"2717\" data-end=\"2727\"\u003eIdeal for:\u003c\/p\u003e\n\u003cul data-start=\"2729\" data-end=\"2880\"\u003e\n\u003cli data-section-id=\"phg2ga\" data-start=\"2729\" data-end=\"2767\"\u003eProfessional pressure washer systems\u003c\/li\u003e\n\u003cli data-section-id=\"cmzgkj\" data-start=\"2768\" data-end=\"2790\"\u003eMobile wash trailers\u003c\/li\u003e\n\u003cli data-section-id=\"n48o3f\" data-start=\"2791\" data-end=\"2822\"\u003eCommercial cleaning equipment\u003c\/li\u003e\n\u003cli data-section-id=\"ggeu2l\" data-start=\"2823\" data-end=\"2849\"\u003eFleet washing operations\u003c\/li\u003e\n\u003cli data-section-id=\"1351n5w\" data-start=\"2850\" data-end=\"2880\"\u003eProperty maintenance systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"3xqko4\" data-start=\"2882\" data-end=\"2905\"\u003eIndustrial Cleaning\u003c\/h3\u003e\n\u003cul data-start=\"2907\" data-end=\"3028\"\u003e\n\u003cli data-section-id=\"1i0u86j\" data-start=\"2907\" data-end=\"2933\"\u003eManufacturing facilities\u003c\/li\u003e\n\u003cli data-section-id=\"1qxp29s\" data-start=\"2934\" data-end=\"2965\"\u003eIndustrial equipment cleaning\u003c\/li\u003e\n\u003cli data-section-id=\"15f8n0o\" data-start=\"2966\" data-end=\"2991\"\u003eHeavy machinery washing\u003c\/li\u003e\n\u003cli data-section-id=\"1bcxxc2\" data-start=\"2992\" data-end=\"3028\"\u003eConstruction equipment maintenance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"81vx2\" data-start=\"3030\" data-end=\"3059\"\u003eAgricultural Applications\u003c\/h3\u003e\n\u003cul data-start=\"3061\" data-end=\"3152\"\u003e\n\u003cli data-section-id=\"u851w7\" data-start=\"3061\" data-end=\"3085\"\u003eFarm equipment washing\u003c\/li\u003e\n\u003cli data-section-id=\"ztywm6\" data-start=\"3086\" data-end=\"3115\"\u003eLivestock facility cleaning\u003c\/li\u003e\n\u003cli data-section-id=\"14do5k2\" data-start=\"3116\" data-end=\"3152\"\u003eAgricultural machinery maintenance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"3154\" data-end=\"3157\"\u003e\n\u003ch2 data-section-id=\"ctfpuh\" data-start=\"3159\" data-end=\"3182\"\u003ePerformance Benefits\u003c\/h2\u003e\n\u003cul data-start=\"3184\" data-end=\"3404\"\u003e\n\u003cli data-section-id=\"ng3c0i\" data-start=\"3184\" data-end=\"3211\"\u003eReliable pressure control\u003c\/li\u003e\n\u003cli data-section-id=\"1gpagnp\" data-start=\"3212\" data-end=\"3245\"\u003eConsistent cleaning performance\u003c\/li\u003e\n\u003cli data-section-id=\"705ixp\" data-start=\"3246\" data-end=\"3272\"\u003eEnhanced pump protection\u003c\/li\u003e\n\u003cli data-section-id=\"h7y6fc\" data-start=\"3273\" data-end=\"3294\"\u003eReduced system wear\u003c\/li\u003e\n\u003cli data-section-id=\"fx0nr5\" data-start=\"3295\" data-end=\"3325\"\u003eImproved equipment longevity\u003c\/li\u003e\n\u003cli data-section-id=\"1enuz59\" data-start=\"3326\" data-end=\"3346\"\u003eHigh-flow capacity\u003c\/li\u003e\n\u003cli data-section-id=\"1nzrik5\" data-start=\"3347\" data-end=\"3372\"\u003eSmooth bypass operation\u003c\/li\u003e\n\u003cli data-section-id=\"c81ntm\" data-start=\"3373\" data-end=\"3404\"\u003eProfessional-grade durability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"3406\" data-end=\"3409\"\u003e\n\u003ch2 data-section-id=\"x2tt67\" data-start=\"3411\" data-end=\"3455\"\u003eSigns an Unloader Valve Needs Replacement\u003c\/h2\u003e\n\u003cp data-start=\"3457\" data-end=\"3503\"\u003eConsider replacing the unloader if you notice:\u003c\/p\u003e\n\u003cul data-start=\"3505\" data-end=\"3706\"\u003e\n\u003cli data-section-id=\"zta6im\" data-start=\"3505\" data-end=\"3528\"\u003ePressure fluctuations\u003c\/li\u003e\n\u003cli data-section-id=\"1q6b73y\" data-start=\"3529\" data-end=\"3561\"\u003eInconsistent spray performance\u003c\/li\u003e\n\u003cli data-section-id=\"lsr916\" data-start=\"3562\" data-end=\"3579\"\u003ePressure spikes\u003c\/li\u003e\n\u003cli data-section-id=\"5x94u5\" data-start=\"3580\" data-end=\"3601\"\u003eWater bypass issues\u003c\/li\u003e\n\u003cli data-section-id=\"d4j17h\" data-start=\"3602\" data-end=\"3625\"\u003ePump cycling problems\u003c\/li\u003e\n\u003cli data-section-id=\"op63ib\" data-start=\"3626\" data-end=\"3657\"\u003eDifficulty adjusting pressure\u003c\/li\u003e\n\u003cli data-section-id=\"17dsgxh\" data-start=\"3658\" data-end=\"3676\"\u003eExternal leakage\u003c\/li\u003e\n\u003cli data-section-id=\"pfbs99\" data-start=\"3677\" data-end=\"3706\"\u003eExcessive wear or corrosion\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"3708\" data-end=\"3711\"\u003e\n\u003ch2 data-section-id=\"16dprsq\" data-start=\"3713\" data-end=\"3734\"\u003eInstallation Notes\u003c\/h2\u003e\n\u003col data-start=\"3736\" data-end=\"4114\"\u003e\n\u003cli data-section-id=\"11mbguz\" data-start=\"3736\" data-end=\"3796\"\u003eRelieve all pressure from the system before installation.\u003c\/li\u003e\n\u003cli data-section-id=\"1vuo091\" data-start=\"3797\" data-end=\"3834\"\u003eDisconnect power and water supply.\u003c\/li\u003e\n\u003cli data-section-id=\"1mxy0px\" data-start=\"3835\" data-end=\"3890\"\u003eVerify BSP thread compatibility before installation.\u003c\/li\u003e\n\u003cli data-section-id=\"zlych4\" data-start=\"3891\" data-end=\"3942\"\u003eApply appropriate thread sealant where required.\u003c\/li\u003e\n\u003cli data-section-id=\"6jhkj6\" data-start=\"3943\" data-end=\"3995\"\u003eInstall according to General Pump specifications.\u003c\/li\u003e\n\u003cli data-section-id=\"1kg99qq\" data-start=\"3996\" data-end=\"4051\"\u003eAdjust pressure settings to match pump requirements.\u003c\/li\u003e\n\u003cli data-section-id=\"1b15p43\" data-start=\"4052\" data-end=\"4114\"\u003eTest for proper bypass operation and leak-free performance.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp data-start=\"4116\" data-end=\"4294\"\u003e\u003cstrong data-start=\"4116\" data-end=\"4130\"\u003eImportant:\u003c\/strong\u003e Never exceed the rated pressure, flow, or temperature limits of the unloader valve. Proper adjustment is critical for safe and efficient pressure washer operation.\u003c\/p\u003e\n\u003chr data-start=\"4296\" data-end=\"4299\"\u003e\n\u003ch2 data-section-id=\"8fimbm\" data-start=\"4301\" data-end=\"4331\"\u003eMaintenance Recommendations\u003c\/h2\u003e\n\u003cul data-start=\"4333\" data-end=\"4616\"\u003e\n\u003cli data-section-id=\"141ggxb\" data-start=\"4333\" data-end=\"4382\"\u003eInspect the valve regularly for wear and leaks.\u003c\/li\u003e\n\u003cli data-section-id=\"1bk99f5\" data-start=\"4383\" data-end=\"4437\"\u003eVerify pressure settings during routine maintenance.\u003c\/li\u003e\n\u003cli data-section-id=\"11v5qqr\" data-start=\"4438\" data-end=\"4476\"\u003eKeep water filtration systems clean.\u003c\/li\u003e\n\u003cli data-section-id=\"iyx3mg\" data-start=\"4477\" data-end=\"4506\"\u003eMonitor bypass performance.\u003c\/li\u003e\n\u003cli data-section-id=\"1evoa83\" data-start=\"4507\" data-end=\"4565\"\u003eReplace worn seals and internal components as necessary.\u003c\/li\u003e\n\u003cli data-section-id=\"1dhcm7y\" data-start=\"4566\" data-end=\"4616\"\u003eFollow General Pump maintenance recommendations.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"General Pump","offers":[{"title":"Default Title","offer_id":53427394249067,"sku":null,"price":170.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0917\/9201\/5723\/files\/K1UNLOADER10.8GPM.webp?v=1782446300","url":"https:\/\/generalsprayers.com\/products\/k1-unloader-valve-10-8-gpm-3600-psi-3-8-m-outlet-oem-replacement-part","provider":"GeneralSprayers","version":"1.0","type":"link"}